Combustion-motor.



M. R. MATTI.

`GOMBUSTION MOTOR.

APPLICATION FILED A1125, 1912.

1,084,461 Patented Jan. 13, 1914.

2 SHEETS-SHEET 1.

WITNESSES:

COLUMBM PLANOGRAPH CO..WSHINGTON. D. c,

M. R. MATTI.

GoMBUsTIoN MOTOR. APPLICATION FILED APR. 25, 1912. 1,084,461 Patented Jan. 13, 1914.

u 2 SHEETS-SHEET 2.

WIT/VESSES: u? /e 44%, 7%

MAX RICHARD MATTI, 0F FALUN, SWEDEN.

COMBUSTION-1VIOTOR.

To all 'whom t may concern:

Be it known that I, MAX RICHARD MATTI, a subject of the King of Sweden, and a citizen of Sweden, residing at Falun, in the Kingdom of Sweden, have invented certain new and useful Improvements in Combustion-Motors, of which the following is a specification.

The present invention relates to combustion motors of the kind in which the mechanism actuating the valves or pump is driven from one or more reciprocating rods provided with cam surfaces.

The invention has for its object to e'ect a regulation of these cam surfaces during the ruiming of the motor by there being arranged on special sleeves, shells or the like, surrounding` the rods, which sleeves can be adjusted on the said rods in the longitudinal direction during the running of the motor. Such an adjustment will suitably take place by ccperat-ing with wardly and formed as bolts and by the sleeves. being turnable in relation to the same. The rods are suitably made rotatable, the sleeves being prevented from turning` thereby by means of suitable guides, but the sleeves may also be made rotatable on the rods.

ln the accompanying drawing illustrating my invention as applied to a two cylinder motor, Figure 1 is a central longitudinal sectional View of the pump or valve actuating mechanism. Fig. 2 is a similar view of a modified construction. Fig. 3 is a sectional view of the modified construction shown in Fig. 2, taken at right angles to the latter.

a indicates an eccentric from which the rod b is moved, by means of the eccentric rod c, the pin cl and the fork e, pivotally connected with the head h of the rod b. The said head It, for this purpose, is provided with a central pin f, entering into a corresponding hole in the fork e, and secured by means of the pin g. The head h., as well as the rod b, are normally prevented from turning by the projection z' which is guided in the groove 70 on a sleeve m, journaled in the frame Z, and rotatable by hand or by means of a governor.

The rod I), is provided with two threaded enlargements n, inserted into the tube sleeves o, threaded onthe inside, said sleeves being guided in a guide 79, in such a way that Specification of Letters Patent.

Patented Jan. 13, 1914.

Application led April 25, 1912. Serial No. 693,173.

they are prevented from turning. These sleeves carry the cam surfaces Q, actuating the rods s, provided with rollers r, said rods actuating in their turn the valves or the fuel pump.

The operation is as follows: On the rota- 'tion of the eccentric a, the rod Y), will ybe given reciprocating movement, the cam surfaces g, thereby imparting a reciprocating movement vertically to the rods s. If this kmovement is to be changed, the sleeve m is only turned, the rod b thereby being turned `by means of the groove 7c, the projection z' I and the head h, the enlargements n thereby lbeing turned in the sleeves 0. As the said '1 sleeves are prevented from turning, they will `be moved in relation to the rod b on acl count of the screw action and as the movement of said rod Zn is unchanged the cam surfaces g will thus give the valve a changed movement as to the time.

the sleeves being threaded inwardly and the rods threaded out- The device, of course, may be modified in such a way that the rod b is not made ro- `tatabl-e, but is rigidly connected with the fork e, the tube sleeves o, instead being made rotatable for instance by the parts fm, lc, and c', acting upon them instead of upon h, or in fact to join 72; with the sleeves 0, and to guide the rod b in the left of the frame.

Such a modification has the advantage, when several cam surfaces are arranged, that they may be adjusted separately, independently of each other, without its being necessary to make any too complicated arrangements for this purpose. If it is desired to arrange the two cam surfaces in such a way that they may be adjusted independently of each other, the rod b must be made in the shape of a central rod and a tube surrounding the same, the rod supporting the one cam surface, the tube, on the other hand, supporting the other one.

If not only the time for introducing the fuel but also the quantity of this fuel is to be regulated, this may be done by the'following modification (Figs. 2 and 3): The groove 7c is arranged in the lower part of the sleeve 79, this sleeve being integral with m, and in this groo-vetwo pins z', arranged one in each sleeve o, engage. By such a device it will be possible to turn the sleeves 0, by turning p and m, which is important if a regulation of the quantity of the fuel is to take place. It is then only necessary to make each cam surface g, of different height in different radial directions, by which the movements of the rods s, and consequently.`

also their strokes can be adjust-ed merely by turning the sleeves o, during the run of the motor. In order to regulate the time of injection, the rod Z) is rotatably arranged as shown on the drawings, a suitable rotatable sleeve 18, being arranged in the left end of the frame Z, said sleeve being provided with a central projection 14C, directed inwardly. Said projection is movably connected With the rod b, for instance, by means of a projection shaped as a fork and embracing the disk-shaped end 15, of the rod I). By this means the rod b is free to move in the axial direct-ion. IVhen the sleeve 13 is t-urned, the sleeves o are moved in the same Way as in F ig. 1; but these sleeves cannot turn, unless the sleeve m; is simultaneously rotated.

1. In valve actuating mechanism for internal combustion motors, the combination of a reciprocating rod, sleeves surrounding said rod, means for rotating said sleeves and means for adjusting said sleeves longitudinally on the rod, When said sleeves are rotated, each of said sleeves being provided with a cam surface, adapted on the longitudinal reciprocating movement of said rod, to impart a reciprocating movement to the valve or pump actuating rods.

2. In valve actuating mechanism for internal combustion motors, the combination of an externally threaded reciprocating rod, internally threaded sleeves surrounding said rod, means for rotating said sleeves, whereby they will be longitudinally moved on said rod, each of said sleeves being provided With a cam surface adapted on the 1ongitudinal, reciprocating movement of said rod, to impart a reciprocating movement to the valve or pump actuating rods.

3. In valve actuating mechanism for internal combustion motors, the combination of a reciprocating rod, driving mechanism for said rod with which said rod is rotatably connected, sleeves surrounding said rod, means for rotating said sleeves longitudi nally on said rod, when said sleeves are rotated each of said sleeves being provided with a cam surface, adapted, on the longitudinal reciprocating movement of the rod, to impart a reciprocating movement to the valve or pump actuating rods.

4l. In a device of the character described, the combination of a frame, a sleeve rotatably mounted in said frame, a pump or valve actuating rod movably mounted in said frame, said sleeve being formed with a longitudinally disposed groove, a reciprocating rod arranged Within said sleeve, a projection carried by said rod and extending into the groove in said sleeve, means for reciprocating said rod, to which said rod is rotatably connected and a second sleeve arrangedV Within the first named sleeve and in screw thread engagement with said reciprocating rod, said second sleeve being provided wvith a cam surface adapted to contact with aud move said pump or valve actuating rod.

In testimony whereof I have affixed my signature in presence of two Witnesses.

MAX RICHARD MATTI.v

Witnesses:

C. HAMMAR, E. M. LUNDSTRM.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner Washington, D. C.

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